Lots of good advice here.
Caution: At least one Instrument testing officer I know frowns upon writing nav or com radio info on flightplans and cheat sheets. He has a point, one day you most likely WILL make a mistake copying it. Some may argue this would be easy to recover from (by looking at the appropriate chart) but this forum is about reducing mistakes and keeping ahead of the aircraft.
All for Chimbu's suggestions, though, make sure nothing is on top of the instrument panel during takeoff and landing. They often fall and the tidiest of paper piles will be very messy very fast.
Good luck!